Tsukuba Express provides wireless LAN services that can be used even in stations and the running train.
The case of having wireless LAN equipment, if you are subscribed to the public wireless LAN service, you can take advantage of Internet service.
Introduced background
In recent years, the place that is available in the public wireless LAN service has increased.
This public wireless LAN service is spreading steadily and growing, not only stations,
you can use places like cafes, the airport, and hotel have increased.
However, for reasons that using available in a limited range, public wireless LAN
service so far, has been growing expectation that want to use in the train.
As a form of access to the Internet in running train, method for performing communication by connecting a mobile phone or PHS to terminal such as a PC is commonly used, as a special case, they are connected with PHS line or mobile phones between the ground and the train.
And thought to form as well to set up a wireless LAN in train.
But, these methods are limited communication speed, the connection was unstable and they cut off communication to the base station when the connection was switched during traveling.
In addition, because these schemes would be charged fees amount was used, there was a problem of high cost.
TX operated by Shutokenshintoshi line connected Akihabara that is the base of IT and Tsukuba that is a city
And because TX passes through Kashiwanoha-campus with many universities and research institutes, the station is eager for IT is widely used in people of business users, researchers and students.
Towards the realization of the environment in which public wireless LAN is available in the train from these things.
The conpany of TX developed a "Internet access high speed system in the train" in collaboration with two Corporations, through experiments the practical application of about one year, it opening started a public wireless LAN service in the train that connects from Akihabara and Tsukuba in August 2006 of the first anniversary.
Mechanism of wireless LAN in train
This system is the country's first commercial system that enables the public wireless LAN service provided in the train running at high speed, it is a revolutionary system in the world.
1. Fast Handover technology
Wireless LAN enable to maintain IP connection at high speeds and seamless communication uninterrupted even during handover across the wireless area.
2. Construction technology of wireless channel between the train and the ground
In the facilities and railroad of 60km length and 20 stations, has been achieved to ensure a fast and stable wireless line.
3. Technology sharing access point of public wireless LAN
It is possible to provide services on a train by a public wireless LAN of multiple business.
4. All wireless technology
Has been achieved in all wireless by relay line like user access, train line and ground, backbone in the train, and between the ground station and the ground relay station.
5. Integration wireless system
By effectively combining various technologies, including 1-4, it has realized this system.
This week is end.
Next week, I will introduce ticket deals of TX.
See you!
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